Don’t know what else to do.

This is my first time reaching out on here and I’m not even sure where to start so I’m sorry if this is long. My husband and I have been together for almost 7 years (I was 15 and he was 16) we got married last September (2017). When we first started dating I knew he was a player but didn’t really think he’d do anything behind my back (Love is blind). So he did end up cheating on me like A LOT with multiple girls. He did tell me a little while after it first happened and also other people would tell me in school and stuff. He said he made out with a few and would meet up with them in school and like touch their asses and stuff like that. I was just so in love I didn’t want to leave him so I stuck it out and we stayed together. We would talk on the phone every night and at 9:00 he would say he’d call me back later. So I caught on eventually and he ended up hanging up to talk to his ex (who I have always HATED). Eventually I made him put an end to that. I eventually got over it all and we were happy for a long time. Then we got married and about 2 months later he like had some sort of anxiety attack and told me A BUNCH of stuff I had no idea about. Like he would have girls come over to his house when we first started dating and do other stuff with them (Never sex). And that he would masturbate to other women often. And it’s not like we don’t have sex, we do almost every day. I don’t have a problem with masturbating but I do if it’s to other women, especially ones I know. It makes me feel completely worthless. I’ve always had really bad self esteem and now I’m just feeling completely worthless and horrible all the time. I try to talk to him about it all and he always says to stop and think about all the good times. But that doesn’t always work and now I just don’t know what to do anymore. Anyone have any sort of advice??